<!DOCTYPE html>
<html>
<head>
<title>四种边距:上、下、左、右</title>

<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">

<!-- 
	padding-top:100px;上边距
	padding-bottom:100px;下边距
	padding-left:100px;左边距
	padding-right:100px;右边距
	padding:设置所有边距
-->
<link rel="stylesheet" href="1.css" type="text/css"></link>
</head>

<body>
	<table id="table1" border="1">
		<tr>
			<td>内边距测试</td>
		</tr>
	</table>
</body>
</html>
